Estimation of herbicide species sensitivity distribution using single-species algal toxicity data and information on the mode of action

2015 ◽  
Vol 34 (3) ◽  
pp. 677-684 ◽  
Author(s):  
Takashi Nagai ◽  
Kiyoshi Taya
Keyword(s):  
Mode Of Action ◽  
Single Species ◽  
Species Sensitivity Distribution ◽  
Toxicity Data ◽  
Species Sensitivity ◽  
Sensitivity Distribution ◽  
Algal Toxicity

scholarly journals Comparative Aquatic Toxicity of Gold Nanoparticles and Ionic Gold Using a Species Sensitivity Distribution Approach

2015 ◽  
Vol 2015 ◽  
pp. 1-16 ◽  
Author(s):  
Tarryn L. Botha ◽  
Tanyn E. James ◽  
Victor Wepener
Keyword(s):  
Gold Nanoparticles ◽  
Aquatic Toxicity ◽  
Single Species ◽  
Species Sensitivity Distribution ◽  
Toxicity Tests ◽  
Species Sensitivity ◽  
Sensitivity Distribution ◽  
Hazardous Concentration ◽  
Toxic Potential ◽  
Ionic Gold

Gold nanoparticles (nAu) are used in drug delivery systems allowing for targeted cellular distribution. The effects of increased use and release of nanoparticles into the environment are not well known. A species sensitivity distribution (SSD) allows for the ecotoxicological hazard assessment of a chemical based on single species toxicity tests. Aquatic toxicity needs to be related to particle characterization in order to understand the effects. The behaviour of nAu in the medium changed as the concentration increased. The toxic potential of ionic gold and nAu was expressed as a hazardous concentration where 5% of species will be harmed (HC5). The HC5 for nAu was much higher (42.78 mg/L) compared to the ionic gold (2.44 mg/L). The differences between the hazard potentials of nAu and ionic gold were attributed to the nAu not releasing any Au ions into solution during the exposures and following an aggregation theory response. Exposures to ionic gold on the other hand followed a clear dose dependent response based on the concentration of the ionic metal. Although SSDs present an indication of the relative hazard potential of nanoparticles, the true worth can only be achieved once other nanoparticle characteristics and their behavior in the environment are also considered.

scholarly journals Deriving Soil Quality Criteria of Chromium Based on Species Sensitivity Distribution Methodology

Toxics ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 58
Author(s):  
Yuxia Liu ◽  
Qixing Zhou ◽  
Yi Wang ◽  
Siwen Cheng ◽  
Weiduo Hao
Keyword(s):  
Soil Quality ◽  
Quality Criteria ◽  
Species Sensitivity Distribution ◽  
Toxicity Data ◽  
Terrestrial Plants ◽  
Species Sensitivity ◽  
Short Term ◽  
Sensitivity Distribution ◽  
Local Soil ◽  
Best Fitting

Chromium (Cr) is one of the most severe heavy metal contaminants in soil, and it seriously threatens ecosystems and human health through the food chain. It is fundamental to collect toxicity data of Cr before developing soil quality criteria/standards in order to efficiently prevent health risks. In this work, the short-term toxic effects of Cr(VI) and Cr(III) on the root growth of eleven terrestrial plants were investigated. The corresponding fifth percentile hazardous concentrations (HC5) by the best fitting species sensitivity distribution (SSD) curves based on the tenth percentile effect concentrations (EC10) were determined to be 0.60 and 4.51 mg/kg for Cr (VI) and Cr (III), respectively. Compared to the screening level values worldwide, the HC5 values in this study were higher for Cr(VI) and lower for Cr(III) to some extent. The results provide useful toxicity data for deriving national or local soil quality criteria for trivalent and hexavalent Cr.

scholarly journals Prescribing sea water quality criteria for arsenic, cadmium and lead through species sensitivity distribution

2021 ◽  
Vol 208 ◽  
pp. 111612
Author(s):  
Panneerselvam Karthikeyan ◽  
Shambanagouda. R. Marigoudar ◽  
Dhandapani Mohan ◽  
Krishna Venkatarama Sharma ◽  
M.V. Ramana Murthy
Keyword(s):  
Water Quality ◽  
Sea Water ◽  
Quality Criteria ◽  
Species Sensitivity Distribution ◽  
Water Quality Criteria ◽  
Species Sensitivity ◽  
Sensitivity Distribution ◽  
Cadmium And Lead

Updated species sensitivity distribution evaluations for acute and chronic lead toxicity to saltwater aquatic life

2017 ◽  
Vol 36 (11) ◽  
pp. 2974-2980 ◽  
Author(s):  
Brian G. Church ◽  
Patrick A. Van Sprang ◽  
M. Jasim Chowdhury ◽  
David K. DeForest
Keyword(s):  
Lead Toxicity ◽  
Species Sensitivity Distribution ◽  
Species Sensitivity ◽  
Aquatic Life ◽  
Sensitivity Distribution
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